When dog's ears are cropped, generally you don't see one flopping back down like that, unless it was a bad operation, but only dog enthusiasts will understand that.
The font doesn't lend itself too kindly to arching so hard. Having a different size bad font also arching makes it doubly wrong.
As for lack of pupils or iris, that's just weird and while you take the time to make some things realistic, but cartoony, you lose it in other places. However, it's a personal preference thing and I would start out by making that announcement when showing your customer or show it with and without pupils, iris and highlights in the eyes. I've heard of good logos or designs going south, just because the customer didn't like one element and that ruins it 100% for the whole process in motion no matter how you try to fix it.